"445 Error" in RSRT output for few KF

Hi Experts,

We are getting values as "445 Error" for the some of the KFs in RSRT output. There are other KFs as well with the same settings. But we are not getting the error for them. This error is occuring only when there is no currency assigned for the row. For more details find the screen shot as below :

Could anyone please let me know the reason and solution for the same ?

Thanks in advance..!!